Hello everyone. This is my first post and my first forum.
I bought a TJ Rubicon back when they first came out. I was living above 9000 feet on a north facing slope in Colorado with a steep rocky 1/4 mile driveway and I couldn't imagine having driven anything else. I sold that Jeep when I went back to school and have been missing her ever since.
I just bought an 06 LJ Rubicon, only 54,000 miles.
It has a mild lift, only 2.5", stock control arms, Fox shocks. The AEV Highline
kit allows for the 35" tires to fit despite the minimal lift. Everything seemed to be in great condition when I test drove her. Lockers worked. Carpet, dash, seats, paint, engine compartment, everything was super clean. The 4.0 sounded clean. The undercarriage had no rock scrapes or rust.
Now I am having some problems, only maybe 1500 miles later.
I've got a death wobble that wants to kick off from 45-52 mph. It's only happened once but I can feel the vibration between those speeds. After consulting youtube I plan to check the steering ball joints and the U-joints and replace whatever is worn out.
That's not what's concerning me.
What concerns me is the heavy grinding that has developed when I turn right. I opened the front diff and it appears the pinion gear has contacted the barrel inside the ring and the ring has contacted the plate behind the pinion gear. It just looks like a graze but I think this is what was causing the noise. I have included pictures.
What's worse, I don't know if I caused the problem or not.
I bought the Jeep with a catalytic converter code. My first job was to replace the 3 cats. I got a Magnaflow system and it fit nicely. No problems with the hardware like I read so much about. But I forgot to put a jack stand under the tranny
when I lowered the skid plate for better access. My mistake didn't occur to me until partway through the job. When I went to jack it back up the pivot point for the transfer case control linkage had been pulled out of socket. I managed to pull the drivetrain to the side as I was jacking it back up and get the linkage lined back up.
I know, Bone Head move.
Does anyone know if it's possible that I caused the front diff grinding? What causes or allows for the ring and pinion to misalign and how do I diagnose/fix it?